Sealed connection structure that can tolerate refrigerant for a long time

Abstract

The utility model discloses a kind of sealed connection structure of long-term tolerance refrigerant, it is related to pipeline connection technical field, it includes first connection flange and second connection flange, annular groove is set up on first connection flange near the center hole, O-shaped sealing ring is arranged in annular groove, wear-resistant corrosion-resistant material layer is compounded on the surface of O-shaped sealing ring, and its height before compression is 0.1-0.2mm higher than annular groove, and the edge of second connection flange is formed with the pressing sealing surface radially protruding from center hole, and the pressing sealing surface covers annular groove and extrudes O-shaped sealing ring to form sealing structure. The utility model is high-pressure sealing reliability, anti-vibration, anti-thermal deformation, anti-refrigerant corrosion;Flow passage optimization reduces flow resistance, reduces compressor power consumption;Ternary ethylene-propylene composite layer and anti-micro-motion wear structure, sealing life is improved.

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